I have a large problem with PrestaShop, I'm using an API created by myself to provide service to a mobile Application.
Now, I can add, delete, update quantity to first shop cart. I can too navigate to categories and subcategories like my online shop.
But I have two shops and I would like to add a specific product on multishop mode to the second shop, and the script always add to the first shop cart.
This is my line to add in cart.
first shop id = 1
second shop = 4
$_shop = new Shop(_PS_SHOP_SELECTED_ID); //_PS_SHOP_SELECTED_ID = 4
$isAdded = $cart->updateQty((int)$product->quantity, (int)$producToAdd->id, $id_product_attribute, FALSE, 'up', 0,$_shop);